PSYCHOLOGY OF EMOTIONS

Detailed explanation-1: -Sleep is a state of reduced responsiveness to the environment, decreased voluntary muscle activation, and largely inhibited sensory modalities. Hence, it is a state of altered consciousness.

Detailed explanation-2: -Hypnagogia meaning Hypnagogia is the transitional state of consciousness between wakefulness and sleep. It’s the opposite of hypnopompia, which is the transitional state that occurs before you wake up. During hypnagogia, it’s common to experience involuntary and imagined experiences.

Detailed explanation-3: -Technically sleep starts in the brain areas that produce SWS. Scientists now have concrete evidence that two groups of cells-the ventrolateral preoptic nucleus in the hypothalamus and the parafacial zone in the brain stem-are involved in prompting SWS. When these cells switch on, it triggers a loss of consciousness.

Detailed explanation-4: -to start to sleep: I fell asleep as soon as my head hit the pillow. She usually falls asleep within ten minutes of going to bed.